As of right now and in no specific order, I'd say........
Call Of Duty 4: Modern Warfare (PS3)
KILLZONE (PS2)
KILLZONE 2 (PS3)
Grand Theft Auto: San Andreas (PS2)
Black (PS2)
Killzone was pretty good,Killzone 2's controls suck ass to me,and Black was great but the last level and the ending pissed me off to no ends.It wave after wave after wave of bad guys that it's almost impossible to get past.